MarathonBet has no sister sites, and it has no British licence either. The company recorded as the British licence holder was Marathon Alderney Limited. A search of the Gambling Commission records for marathon on 16 August 2026 returns the words No results, so there is no British file left to name a partner brand.
#AD · 18+ · New customers only · Ends 23:59 on 30 September 2026 · Register with bonus code REBATE20 · 20% rebate on overall net Matchbook Exchange losses recorded in the 30 days from registration · Max rebate £1,000, max £100 per event · Paid as free bets in £50 tokens, 7-day expiry · Free bet stake not returned, cannot be withdrawn · Multiples, Bet Builders, Casino & Matchbook Zero excluded · One per person/household · Skrill, Neteller & PaySafe first deposits excluded · Full T&Cs apply · Play responsibly · BeGambleAware.org
Full T&Cs
New customers only, registering with bonus code REBATE20 on Matchbook.com or its mobile apps. Promotional period runs 09:00 GMT+1 on 1 June 2026 until 23:59 GMT+1 on 30 September 2026. Qualified users receive a 20% rebate on overall net losses recorded in the 30 calendar days from registration, on Matchbook Exchange markets only — losses on Multiples, Bet Builders, Casino and other products are excluded, and losses are gross before commission. Maximum overall rebate is £1,000 (implying a £5,000 gross exchange loss); the maximum counted loss from any one event is £500, giving a £100 per-event rebate cap. Free bets are credited the day after the 30-day period ends, for use exclusively on Matchbook Exchange, split into tokens capped at £50 (e.g. £428.56 due pays 8 × £50 + 1 × £28.56); minimum free bet £1; paid in account currency (£1=€1=$1). Each token expires 7 days after crediting, cannot be withdrawn, must be staked in full, and the stake is not returned on winning bets. Bets on Matchbook Zero or ADI Predictstreet do not qualify. Not open to sign-ups from Outplayed, Oddsmonkey, Matchedbettingblog, Teamprofit, Edgehunter or AI Profit; participation excludes future 0% Commission promotions. Strictly one per individual, family, household, email address, payment card and/or shared computer. First deposits via Skrill, Neteller or PaySafe card do not qualify. Promoter: Triplebet Limited. General T&Cs apply.
#AD · 18+ · New customers only · Min deposit £10 via the sports cashier · Place £10+ in settled bets to unlock a one-time £50 free bet · Min odds 1.5 · Free bet stake not returned · Winnings from the free bet wagered 1x before converting to cash, max conversion £200 · Bonus & winnings expire 7 days after crediting · One sports welcome bonus per ProgressPlay network · Withdrawal requests void pending bonuses · Skrill & Neteller deposits excluded · Full T&Cs apply · Play responsibly · BeGambleAware.org
Full T&Cs
New players only. Deposit a minimum of £10 using the sports cashier and place settled bets to the value of £10 or more to receive a £50 free bet. The free bet is a one-time £50 stake at minimum odds of 1.5; the stake is not returned. The bonus credits as pending and activates automatically once £10 of real bets have accumulated. Redeemable once, on your first deposit; up to one sports welcome bonus per player on the ProgressPlay network. Winnings generated from the free bet must be wagered 1x before converting to real money, up to a maximum conversion of £200; bets must settle to count, and bets counting toward wagering cannot be cashed out. Bonus and winnings expire 7 days after crediting. Multiple free bets must be used in the order credited, cannot be accumulated, and are limited to 5 free bet bonuses per month. Withdrawal requests void all active or pending bonuses. Not available with Skrill or Neteller deposits. Betsuna is operated by ProgressPlay Limited, licensed and regulated in Great Britain by the Gambling Commission (account 39335). Full T&Cs apply.
#AD · 18+ · New players only · Min £10 in qualifying bets, stake not returned · One-time £10 free bet at min odds 1.5, stake not returned · Winnings wagered 1x before converting (bonus bets only, real balance wagered first), max conversion £200 · Free bets & bonuses valid 7 days · Limited to 1 sport & 5 casino brands within the network · Withdrawal requests void pending bonuses · Skrill & Neteller deposits excluded · Full T&Cs apply · Play responsibly · BeGambleAware.org
Full T&Cs
New players only. Place £10 in qualifying bets (stake not returned) to receive a one-time £10 free bet at minimum odds of 1.5; the free bet stake is not returned. Winnings from the free bet must be wagered 1x before converting to real money, with wagering calculated on bonus bets only and the real balance wagered first; maximum conversion £200. Free bets and bonuses are valid for 7 days. Limited to 1 sport and 5 casino brands within the operator network (Gambling Commission account 39335). Withdrawal requests void all active and pending bonuses. Skrill and Neteller deposits are excluded. Full T&Cs apply.
18+. Gambling can be addictive. Play responsibly. BeGambleAware.org | GamStop.co.uk
Offers subject to operator terms. This page contains affiliate links.
🛑 No British file on the public record 🏢 Marathon Alderney Limited 📅 Closed to British customers, April 2022
🔍 What a search of the public record returns today
Selling gambling to somebody in Great Britain needs a licence, and every licence granted is published free for anybody to read. The public record was searched again on 16 August 2026 for the word marathon. That search covers business names, trading names, web addresses and account numbers, and it came back with the words No results.
✅ Checkable: put the brand name into the public record yourself and see which account answers
☑ Checkable: the same search finds every company that has filed a web address under a given name
❌ Not checkable: any list of MarathonBet sister sites, because there is no British file left to build one from
There is no way now to look up which company was answerable, which permissions it held, which web addresses were filed against it, or whether anything was ever recorded against it. There are none, and there cannot be any while there is no British licence to share.
Lists of MarathonBet sisters do still circulate, and they are put together from overseas versions of the brand. None of those ever sat on the British licence while there was one to sit on, and the search above shows that none has picked one up since.
⚽ Where a Marathon customer ends up instead
Neither name below is a sister site of MarathonBet, because a sister needs a shared licence and there is no licence left to share. Each files its web address under a company whose British file is published in full, so the firm answerable for the money can be looked up before an account is opened.
JeffBet
One Cyprus company, two web addresses filed
A search of the public record for jeffbet returns one company, ProgressPlay Limited. Two web addresses sit under that name, jeffbet.net and www.jeffbet.com. The site itself puts a sportsbook, a slot library and live bingo rooms behind a single login.
📋 On the public file, read 16 August 2026: ProgressPlay Limited files its head office in Limassol, Cyprus. Three permissions are Active and current, casino from 1 November 2014, betting on real events from 17 December 2018 and bingo from 23 August 2024. No premises are filed and 192 web addresses are.
Betarno
Operated by ProgressPlay, named in its own footer
Betarno comes back with two results instead of one. Onyx Gaming Limited files betarno.com, and ProgressPlay Limited files www.betarno.com. The Betarno footer says which one you would be dealing with. It names ProgressPlay Limited as the operator and prints its British account number beside it.
📄 From the Betarno footer, read 17 August 2026: the operator is ProgressPlay Limited, a Malta company based in St Julians. It also holds a Malta Gaming Authority licence issued on 16 April 2013, alongside the British account above.
Neither company is connected to Marathon in any way. Both files were open and complete when they were read on 16 August 2026.
⏰ What was on file before it was taken down
Some of what follows cannot be checked any more. It was read on 15 August 2026, before the file came down, and it keeps that date.
Marathon Alderney Limited was the company on that file. The brand closed to new sign-ups on 4 April 2022, and 14 April 2022 was the last day it took deposits and bets from British customers.
That same visit found the MarathonBet address serving a notice telling existing customers they could still sign in and take out a balance, and pointing customers outside Britain to the Gambling Control Commission in Alderney. Anybody still holding money from 2022 should treat it as a 2022 notice rather than a description of today, and start with the contact routes on the site itself.
📁 What a closed file normally looks like
A licence that ends does not usually take the file with it. Two other closed operations covered on this site still return a full summary to anybody who searches for them, which is what makes the blank result for marathon unusual rather than routine.
📝 Three endings, three different results, read 15 and 16 August 2026
TGP Europe Limited handed its permissions back rather than contest a penalty, and its summary still opens
AG Communications Limited keeps 76 web addresses that are all switched off, and its summary still opens
Marathon Alderney Limited brings back nothing at all, so there is no summary to open
The practical difference is what a former customer can still do. Where a summary opens, the licensed company, its permissions, its filed addresses and anything recorded against it can all be read years after the last bet was settled. Where the search comes back empty, none of that is available, and the only routes left are the ones the brand still prints on its own pages.
⚠️ If a site using the name takes a bet from you today
💰 Worth knowing before you place a bet
There is no British licence behind this brand now. A site using the name and taking bets from people in Great Britain today would not be operating under the arrangement that was in place until April 2022.
The Commission prints a standing note on its file pages. It says that anybody in Great Britain who has been offered gambling by somebody that does not appear to hold a licence can report it, because it may be illegal. That note was on every file page opened for this update on 16 August 2026.
🔗 More licence checks on this site
10Bet is a single brand and its British file is still there to open. BC.Game covers TGP Europe Limited, the account that was handed back rather than taken away. QueenPlay covers AG Communications Limited and the 76 web addresses on its file that no longer answer.
